10121002012 has 24 divisors (see below), whose sum is σ = 19451602800. Its totient is φ = 4569576960.

The previous prime is 10121002009. The next prime is 10121002027. The reversal of 10121002012 is 21020012101.

It is a self number, because there is not a number n which added to its sum of digits gives 10121002012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 765333 + ... + 778444.

It is an arithmetic number, because the mean of its divisors is an integer number (810483450).

Almost surely, 2^10121002012 is an apocalyptic number.

It is an amenable number.

10121002012 is a deficient number, since it is larger than the sum of its proper divisors (9330600788).

10121002012 is a wasteful number, since it uses less digits than its factorization.

10121002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543941 (or 1543939 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10121002012 its reverse (21020012101), we get a palindrome (31141014113).

The spelling of 10121002012 in words is "ten billion, one hundred twenty-one million, two thousand, twelve".